Around compact luminescent, so-called. energy-saving lamps in recent years there have been many rumors and myths. In this article, we will try to dispel some of the most common myths.

The first myth. Energy-saving lamps emit UV rays that are harmful to health.

It is known that light has on the human body affects the metabolism in the body, physical development and human health. The most useful in this regard is daylight (light from the sun). In artificial lighting when using incandescent lamps (thermal light sources), ultraviolet radiation is completely absent.

Ultraviolet radiation in the volume that we receive from energy-saving lamps is not only not harmful, but even very useful for the human body. It relieves fatigue, eliminates depression ...

I bring to your attention another "entry page" on the site with links to selected articles. This time, this is a selection of articles on such an interesting and very demanded topic as "Lighting control in the house."

The rapid development of lighting and electronics in recent years has led to the creation of not only a large number of new types of light sources, but also various devices that control the light sources. And if until recently, only conventional switches were used to control the lighting in an apartment or house, now now one list of all the possible all lighting control elements will take more than one line.

I hope that this page will help site visitors better navigate the variety of all kinds of technical solutions that are used to control and automate home lighting ...

How to properly repair the apartment wiring.

In our long-suffering country, people do not have enough money to buy new housing. Secondary market of apartments, i.e. Apartments "B.U." becoming more popular.

In the last century, when this housing was built, they counted on the energy consumption of an apartment of 1-2 kW, and now it can easily reach 10 kW. Almost everyone has a washing machine, microwave oven, iron, hair dryer, vacuum cleaner, electric toaster, electric grill, etc. Most of these devices easily consume 1-2 kW, but they can be turned on at the same time!

But how to start repairing electrical wiring? There are certain rules for this. They will help you save time, money and health ...

As the size of the site bgv.electricianexp.com is becoming more and more every day, there are many new articles, it is quite difficult for new visitors to immediately navigate and review at a time everything already written and previously posted.

I really want to draw the attention of all visitors to individual articles that were posted on the site earlier. In order to not have to search for the necessary information for a long time, I’ll make a few “input pages” with links to the most interesting and useful articles on specific topics.

The first such page will be called "Useful electronic homemade products." Here we consider simple electronic circuits that are available for implementation to people of any level of training. All information in the articles is presented in a very accessible form and in the amount necessary for practical work ...

Today in the market of security systems there is a wide variety of alarms that protect an apartment, private home or office.There are simply “chants” - systems that emit alarming sound signals, are based on GSM — send a message or ring the alarm to the owners. You can also see alarms with a built-in telephone line, a built-in telephone line and a GSM module at the same time.

According to the type of information transmission, signaling is divided into wired and wireless. Autonomous alarms work independently of other systems, remote alarms are connected to the central console, to which an alarm signal is received, as a result of which a response group can be sent to the object.

Depending on your wishes, you can choose the desired alarm, but which one can you set yourself? It already depends on the level of your knowledge ...

Cottage, cottage, just some country house or private estate - all this has one thing in common. All these "residences" usually need an autonomous water supply, their own sewage system, and sometimes a system that ensures the pumping out of melt and emergency polluted water from the basement. The implementation of such systems is carried out using pumps and pumping stations.

A pump is considered to be a mechanism designed to pump pressure in a liquid medium, and a pump station is a device that includes, in addition to the pump, the necessary drive (most often an electric one), a storage tank, and elements of an automation system. In order to understand how to connect a household pump, you need to get acquainted with the classification of pumps and their applications ...

In accordance with current technical standards, the wiring in the apartment must be three-wire, and the outlet networks must be equipped with differential protection. There is no need to once again tell that all this is achievable is far from always. Therefore, RCDs and differential circuit breakers in apartment switchboards can still be seen infrequently - mainly for connecting a washing machine, which is usually located in the bathroom.

The fact is that according to the rules of the PUE, protection against leakage currents for power consumers in the bathroom is mandatory. And, installing a washing machine in the bathroom, experts often put in a shield a separate differential protection device for connecting it. However, it is not uncommon for a situation where the RCD or the difavtomat, to which the washing machine is connected, starts to constantly work and, what is called "spoil the nerves" ...

Digital technology has become so firmly entrenched in everyday life that many such devices have taken for granted. This is exactly what happened with digital cameras, which somehow quietly supplanted their film counterparts.

Together with a digital camera, a set of finger-type batteries and a charger for them are usually purchased, which allows you not to depend on constant purchases of disposable batteries. A little time passes and the happy owner of photographic equipment begins to notice that the battery charge is enough for an ever smaller number of shots. Moreover, what causes an unpleasant precipitate in the shower, a friend has exactly the same batteries working 2-3 times longer, however, in a different brand of camera. There are no miracles in electrical engineering, so let's try to figure out the reasons for this difference. Finger batteries are chemical sources of direct current ...